Misc: what was the name of doctor who's dog?

Questions

Chopin's "Minute" waltz: ?

How many symphonies did Chopin write ?

With which composer would you link the following musical forms. Nocturnes; Etudes; Waltzes; Polonaises; Mazurkas; Impromptus etc. ?

With which composer would you link the following musical forms. Fugues; Preludes; Passions; Partitas; organ works etc. ?

Who was Wagner referring to when he said "The most stupendous miracle in all music" ?